Why Do Fish Jump Out of the Tank?
At a Glance Jumping is usually a stress response to poor water quality, low oxygen, bullying or a sudden scare. Test ammonia and nitrite, then fit a lid with a … Read more
Why Is My Fish Sitting at the Bottom of the Tank?
At a Glance Check the temperature (24 to 26°C for most tropical fish) and test ammonia and nitrite first. If both are fine, look for a swim bladder problem or … Read more
How Do Fish Sleep in a Tank? What Resting Fish Look Like
At a Glance Fish sleep with their eyes open, by slowing down, hovering in place, settling on the bottom or tucking into plants. Give them a real dark period: RSPCA … Read more
Why Are My Fish at the Top of the Tank?
At a Glance Fish gasping at the surface usually points to low oxygen or ammonia, so test ammonia and nitrite, then add surface movement and cool the water if it’s … Read more